The table shows the distribution of the distance (in km) covered by 40 hunters while hunting.
Distance(km) 3 4 5 6 7 8
Frequency 5 4 x 9 2x 1
If a hunter is selected at random, find the probability that the hunter covered at least 6km.
  • A \(\frac{3}{5}\)
  • B \(\frac{2}{5}\)
  • C \(\frac{3}{8}\)
  • D \(\frac{9}{40}\)
waec 2022furthermathematics

The correct answer is A. \(\frac{3}{5}\)

5+4+x+9+2x+1 = 40 19+3x = 40 3x = 21 x = 7
Distance(km) 3 4 5 6 7 8
Frequency 5 4 7 9 14 1
The probability that the hunter covered at least 6km, means the hunter covered either 6km or 7km, or 8km. 24 hunters covered at least 6km
24 40  =   3 5
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